Q-curvature and path integral complexity

We discuss the interpretation of path integral optimization as a uniformization problem in even dimensions. This perspective allows for a systematical construction of the higher-dimensional path integral complexity in holographic conformal field theories in terms of Q-curvature actions. We explore the properties and consequences of these actions from the perspective of the optimization programme, tensor networks and penalty factors. Moreover, in the context of recently proposed holographic path integral optimization, we consider higher curvature contributions on the Hartle-Hawking bulk slice and study their impact on the optimization as well as their relation to Q-curvature actions and finite cut-off holography.

Automated summary

This study discusses the interpretation of path integral optimization as a uniformization problem in even dimensions, and systematically constructs the higher-dimensional path integral complexity in holographic conformal field theories in terms of Q-curvature actions. The properties and consequences of these actions are explored from the perspective of the optimization programme, tensor networks, and penalty factors. The study also considers higher curvature contributions on the Hartle-Hawking bulk slice in the context of recently proposed holographic path integral optimization, and studies their impact on the optimization as well as their relation to Q-curvature actions and finite cut-off holography.